Hi I am developing an app which requires end user to login to the app's back-end server with his google account. This app supports in-app purchasing for a non-consumable item. Once the end user makes the purchase he could be upgraded as a premium user. The back-end server will store the purchased information and also the account information hence the back-end server knows if the login account is the premium user or not.
This idea works well if the end user only has one google account. However there might be a case that the end user has multiple google account e.g. account A and account B. A problem will happen if the login account is different the payment account. Below is the example: 1. End user uses account A to login to app's back-end server. 2. End user make in-app purchase, but using account B for the payment. 3. Back-end server verifies the purchase receipt and upgrades account A as premium user. 4. After some while the end forgets his original login account, so he decides to use account B to login the back-end server. Since from the app's back-end server, account B never makes an upgrade purchase, so the app notifies end user he should purchase an upgrade to be a premium user. 5. End user then make a purchase however the google play will notify end user that he already owns the item since he did the purchase for account A before. This may be not the common cases but it might happen and the app developer should try to prevent this. The way I could think about to avoid this situation is enforce the same account for login and payment. However I could not find any APIs or method to get the in-app purchase account. Is there anyway to deal with this situation? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/1a342664-adb3-4396-b5e5-0be5bdf2747c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
